Dispensing container



June 6, 1933. P. D. PETERSON 1,912,384

DISPENSING CONTAINER Filed Nov. 25, 19:50 5 Sheets-Sheet l Filed Nov. 25, 1930 5 Sheets-Sheet 2 m VENTOR. 27u/0. @fe/asa.

June 6, 1933. p PETERSON 1,912,384

DISPENSING CONTAINER Filed Nov. 25, 1950 5 Sheets-Sheet 3 IN VEN TOR BY I v w TONEY.

June v6, 1933. p D, PETERSON 1,912,384

DISPENSING CONTAINER IN VEN TOR,

BY fwa ATT z vs June 6, 1933. P. b. PETERSON 1,912,334

DISPENS ING CONTAINER Filed Nov. 25, 1930 5 Sheets-Sheet 5 IN V EN TOR.

Patented June 6, 1933 rrsn STATES PATENT orrics PAUL D. PETERfiON, 0F LIGOIQ'IER, PENNe'YLVANiA, ASSIGNOR TO THE KOPPERS CGMALNY OF 'JI'TLAVJ'AEE, A C-"ORPOEATION OF DELAVIARE nrsrnnszne- CONTAINER My invention relates to the art of packaging substances in powdered form, and more particularly to containers for pulverulent materials such insecticides, dusting powders, and the like.

it is a well-known fact that it is often desirable to apply dry, powdered insecti cides, such as sulphur, etc., to shrubs and other vegetation. Dustin powders are also applied to animals, and are used for other purposes. To obtain the maximum benefit from the application of the several types of powdery material so used, it is essential that the material be distributed. or ejected in the form of a penetrating cloud of fine dust. The need tor an cliicient dispensing device or dust gun for the ap ion of insec- .res and other pulverinsubstances of similar nature has long been recognized, and several devices have been developed in the past to satisfy that need.

Most of the satisfactory dustdispensing devices now in use operate on the principle of passing air through a receptacle containing the powder to be applied, the air servto agitate the powder and raise dust which is carried to the desired destination by the air stream. A common embodiment of this principle is in a bellows type of apparatus; the bellows are opened to draw in air and agitate the powder, and then closed to expel air and dust through a suitable exhaust port or nozzle, which guides the dust in toe desired direction. However, although dust-guns of the bellows type are quite ethcicnt dispensers of insecticides and the like, they generally large and unwieldy and relatively expen e to manufacture as compared with shipping or retailing cartons of the same volumetric capacity.

There are many actual and potential users of insecticides and similar materials whose total consumption of dusting powders is reltively small, but who nevertheless are imasurably benefited by the use of the reqr -ed small amounts. For example, the total consump ion of materials of this class by many families might be a pound r a few pounds of sulphur per year for application to rose bushes, a grape vine, or the like.

Such families in most cases do not feel justified in possessing a cumbersome and expensive dust-gun, nor would such a device be well adapted to their needs.

To satisfy the requirements of the large number of people in this situation, several attempts have been made to combine a carton or container for powder with a suitable dispensing or dust-ejecting device, and thereby to obviate the necessity, in the case of small consumers, of purchasing the powder in bulk and transferring it to a dust gun for application.

Prior to my present invention, however, none of the existing embodiments of this idea were entirely satisfactory. When an attrac ive and compact carton was produced, its capacity and efficiency as a dust distributor was extremely limited; and the more ei'hcient distributing devices were too cumbersome and expensive to be suitable as containers in which to retail insecticides and the like, and were too heavy, bulky, and irregular in shape to be well adapted to shipping. Furthermore, they were in general rather unattractive in appearance.

Another defect commonly encountered in the combined dispensing packages known to the prior art is that their structure was such that th y were only operable in certain directions, usually approximating horizontal. If an attempt was made to discharge dust downwardly, the powder was dumped to the ground and wasted, or it sealed off the combined air-intake and dust-discharge port and made the device useless. hen an upward discharge was attempted, agitation of the powder was insul'licient and because of that and the inherently small amount of air drawn in and expelled, the production of dust was usually negligible.

Obviously such limitations against the utility of devices of this class as it is generally true that the surfaces to which insecticides, etc., are applied in dust form are irregular, and are in part inaccessible from any one plane.

An object of my present invention is to provide a dispensing container from which insecticides and the like may be discharged militate in any desired direction without dumping or other unnecessary waste.

Another object of my invention is to provide a simple and compact container for pulverulent material which also serves as a dispenser or dust-gun of high capacity.

A further object of my invention is to provide a durable and attractive carton for packing and shipping sulphur and other powders, which can be readily and cheaply manufactured, and which is conveniently converted into a highly eflicient dust dispenser.

A further object of my invention is to provide a dust distributor of the bellows type so compact and simple in construction that it can economically be used as a carton for shipping and selling insecticides and other pulverulent materials.

My invention has for further objects such other advantages and results as are found to obtain in the article hereinafter described and claimed, and in the process of manufacturing the said article.

My invention is a distinct improvement on the prior art in powder-dispensing cartons or containers. It combines a carton of any desired size and a high capacity, bellows-type, dust dispenser in a neat, attractive and compact dispensing container. It is provided with a non-chunping manifold which allows efiicient discharge of dust in any direction, and it is so inexpensive to manufacture that it can economically be used for shipping and retailing powdered materials.

My dust-dispensing container, or ejecting carton, is made by inserting a bellows between the two halves or sections of the carton proper, which are hinged together at one end. The bellows and the hinge or hinges are preferably made of paper, but cloth or some other suitable material can be used. The two sections of the carton are made of cardboard or some other relatively rigid material. This carboard and paper construction is usually preferable because of its comparative cheapness.

Although my container is especially adapted for use in moderately small sizes, it may be of any reasonable size, and the most suitable dimensions vary according to the nature of the powder and the purpose for which it is used. I have found that in the case of a container for sulphur for application to shrubs, vines, and the like, convenient dimensions for the carton (when closed as in Fig. 1) are about 8 by 4;" by 2 A carton of this size holds about a pound of sulphur and leaves room for sufficient air circulation. The exhaust port may suitably be circular and from to 1 in diameter-ll/IG for example, although other sizes and shapes may be employed if desired. The non-dumping manifold must be wide enough to cover the exhaust port.

In order that the advantages of my present invention may be more readily appreciated, I now describe with reference to the accompanying drawings a preferred embodiment of my device and a suitable method whereby my dispensing container may be constructed. In the drawings:

Figure l is a perspective view of my container, closed and sealed for shipment or sale;

Fig. 2 is a similar view of the container without the seals and with the bellows partly opened;

Fig. 3 is a plan of the container with the bellows removed and with the container opened wide, showing a manifold in place;

Fig. 4: is a perspective view of one part of the container with sections cut away to show details of a manifold and a preferred arrangement of manifold, discharge port, and filling hole;

Fig. 5 is a perspective view of an improved type of non-dumping manifold, with sections cut away;

Fig. 6 is a View of the blank from which the bellows are folded, showing the position of folding lines and stiffeners;

Figs. 7 and 8 are views of the folded bellows;

Fig. 9 shows how economically the bellows blanks may be cut from a strip or sheet of paper or the like; and

Figs. 10 to 14 and 15 to 17 show convenient alternative methods of constructing a manifold of the type shown in Fig. 5.

Similar numerals are used to indicate similar parts in all of the drawings.

Referring to Fig. 1, the container consists of two rectangular box-like halves or sections 1 and 2, preferably of cardboard and substantially equal in size. These two sections are connected by a hinge or hinges of paper or other suitable material along the edges 3, and by a bellows (not visible in this figure) along the other three edges.

An exhaust port (3 is punched in one section 2 of the container, and a filling hole 7, indicated by dotted lines, may also be provided. The bellows are then glued in place, or fastened in some other manner, and the two halves of the carton are brought together in the position shown, resulting in a compact, rectangular container.

The carton is then filled to the desired extent, and a rip-cord 8 is placed part or all of the way around the dividing line between the two sections and sealed in place, as by a strip of paper adhesive tape 9. The ripcord 8 may also circle the exhaust port 6, in which case it is fastened there by a separate seal of adhesive paper, as shown or by a continuation of the strip 9. The ripcord and seals may be put in place before or after the filling of the container.

The filling hole 7 is also closed after filling by a tab which is adhesively sealed or otherwise fastened in place. An alternative means of sealing the carton is to wrap a single strip of adhesive paper completely around it after filling, leaving one end of the cord free as before. Or the whole package may be covered with a wrapper bearing decorations, instructions, or the like, .which may be used alone or after sealing as shown, with the rip-cord protruding from a corner of the wrapped package in the latter case.

To open the package, the free end of the cord 8, at the lower end of edge 3, is grasped and pulled. This breaks the seal around the dividing line between sections 1 and 2, allowing the bellows to be opened and closed at will. It also opens the exhaust port when the cord is applied as shown in the present instance.

While the rip-cord is a seemingly minor detail of the completed package, it performs its important function of opening the package in a neat and efficient manner, and eliminates the danger of injury to the bellows which would be incurred if the seals were broken with a knife or other sharp instrument. However, I do not limit myself to the use of a rip-cord and adhesive seals for opening and fastening the package.

Fig. 2 is a view of the package without the rip-cord and seals, as it appears before filling and sealing. The bellows 10 are partly opened or extended, and the exhaust port. 6 is also open. The filling hole 7 can conveniently be made by cutting through the carton along three sides of a rectangle of suitable size. The tab 12 so formed is left in place to close the hole when it is not in use. Alternatively, the filling hole can be made circular or in other preferred shape, and the tab may or may not be completely removed in any case.

Fig. 3 shows the two halves 1 and 2 of the container opened wide apart, connected by hinges 14. A single hinge, extending part or all of the way across the edge 3, may be substituted for the two hinges shown if preferred and the hinges may be fastened to either the inside or the outside of the side sections, but are preferably inside. A nondumping manifold 15 is shown in place in section 2, with one end covering the exhaust port. Openings 16 and 17 for the passage of dust and air are provided near the ends of the manifold.

Fig. 4 shows the section 2 of, the dispensing container in more detail. The manifold 15 covers the exhaust port 6, and prevents dust or powder from passing directly from the body of the container through the port. Air is drawn into the container through port 6 by opening the bellows, and passesaround a middle lamella 18 forming part of the manifold. If either of the openings 16 or 17 is covered with powder due to the tilted position of the carton, the air is drawn in through the other, and when the bellows are closed again dust and air are expelled by the same route.

A modified and improved type of manifold is shown in detail in Fig. 5. In this type, the middle lamella 18 extends the whole length of the manifold, which is preferably of the same length as the interior of the container, instead of extending only part of the length as in the case of the manifold shown in Fig. 4:.

For this reason, there is even less possibility of dumping and wasting powder with this type of manifold than with the one previously shown. Another advantage of this type is its extreme simplicity of construction, which will be described in more detail hereinbelow. Air passes through an opening 19 in the middle lamella 18 on its way between the exhaust port and the openings 16 and 17 The openings 16, 17 and 19 may be of any desired shape, and their relative positions may be varied somewhat. However, the openings 16 and 17 should be near or at the ends of the manifold casing, and opening 19 should be approximately midway between them and approximately midway between the ends of the manifold.

The manifold is an important feature of my dusting carton, as it prevents excessive quantities of dust from being dumped out of, the exhaust port when the latter is pointed in a downward direction. Then the carton is held horizontally, as in Fig. 1, the manifold lies above the level of the contents of the container and air is free to flow in and out of either or both of the openings 16 and 17. WVhen the carton is tilted to dust downward (as in Fig. 2) the front opening 16 of the manifold may be covered, but air can pass freely through the rear opening 17. The preferably curved sealed end of the mi ddle lamella prevents any material from dumping directly out of the exhaust port.

Similarly, when the carton is tilted upwards, the rear opening 17 may be covered, but air is free to pass through the front opening 16. The container should not be filled so full that the manifold is covered when the container is in a horizontal position, as overfilling results in excessive discharge of dust, and may interfere with the movement of the bellows and in some cases be injurious to them.

Fig. 6 shows the shape of the blank 22 from which the bellows are folded. It is cut from manila paper or other suitable material. End tabs 23, indicated by dotted lines, may be included in the blank if desired. When they are included in the finished bellows, they are folded in across the hinged end of the container, and may serve as hinges, or as reinforcements for other hinges. To form a bellows from the blank, the blank is creased along the center line 2525,

5 marginal folding lines 26, 27, 28, 29, 30 and 31, cross-lines 33 and 34, and lines 35, 36, 37 and 38, each of which bisects an angle between a side marginal fold 26, 28, 29, or 31 and a cross-line 33 or 34. A reinforcing strip 40 of paper tape or other suitable ma terial, such as linen tape, may be applied along the center line 2525, and along any of the other folds where it is wanted.

By this creasing, or marking of folding lines, the blank is divided into an end section and two side sections, and each of these three major sections is further sub-divided into marginal strips and folding segments. The end section, defined by the cross-lines 33 and 34 and the edges of the blank, consists of-two marginal strips 43 and 44 and two folding segments 45 and 46, all substantially rectangular.

Stifl'eners of cardboard or other suitable material may be used to strengthen the segments of either or both of the side sections and of the end section if desired. Stiffeners are particularly desirable in the section of the bellows on the lower side of the containerthat is, on the side opposite from the exhaust port-as in that position they prevent the weight of the contents of the carton from causing the bellows to sag, thereby interfering with its operation.

In Fig. 6, the section to the left of line 33 is considered the lower side, and stiffeners 47 and 48 are fastened in position thereon. The section to the right of line 34 is the upper side. The lower section consists of two marginal strips 49 and 50, two major folding segments 51 and 52 (upon which stiffeners 47 and 48 are placed) and two smaller folding segments 53 and 54. Similarly the upper section consists of two marginal strips 55 and 56, two major folding segments 57 and 58, and two minor folding segments 59 and 60. End taps 23 may be included if desired, as stated hereinabove.

The dimensions of the bellows and the blank obviously depend on the size of the dispensing container in which they are to be used. For a container of the size mentioned in the example above, i. e., 8 4 2% when closed, the end section of the blank should be 4 inches wide along the edges and along lines 27 and 30, and the side sections should be 8 inches long as measured along thelines 26, 28, 29, or 31 from the cross lines 33 and 34 to the ends of the blank or to the end tabs. The marginal strips may be of any desired width, preferably not exceeding the depth of the halves of the carton proper, which is 1 4 inches in the example given.

The bellows are formed by folding in the two side sections of the blank along the lines 33 and 34 until they are substantially parallel with each other and at right angles to the end section, with reinforcing tapes and stifi'eners on the inside. NVith the end section held in a horizontal plane, and the side sections dependent therefrom, the end section is pushed downward along the center line 25, and points on the side sections at the intersection of the bisecting lines (35 and 36, and 37 and 38, respectively) with the-center line are pushed inward, causing the bellows to take the form shown in Fig.

2. This view shows the upper side section of the bellows, and the edges of marginal strips 44 and 50.

This application of force and the resulting folding or compression of the bellows are continued until the marginal strips 55 and 56 are substantially parallel, as shown in Fig. 7. When this stage is reached, the folding segments 57, 58, 59 and 60 practically disappear from View, and the only visible parts of this side of the bellows are the marginal strips 55 and 56, and the fold along line 34.

Fig. 8 is a view of the folded bellows from a direction at right angles to the view shown in Fig. 7, looking towards the plane denoted by line 6161 in Fig. 7 from the left. In this View, segments 51 and 57, and a portion of segment 45 are seen. The reinforcing strip 40 and stiffener 47 are shown in place. The edges of marginal strips 49, 43 and 55, folded along lines 26, 27 and 28, respectively, are also visible.

It will be noted that the bellows formed as described hereinabove has a single inwardly-extending fold on each side. This is the simplest possible structure and consequently the cheapest and, in general, the most satisfactory to use. The use of multiple fold bellows in my invention is not excluded, however.

An outstanding advantage of the singlefold type of bellows is that the number of points of maximum wear, which occur where several folding lines intersect, is reduced to a minimum, thereby reducing the chances for leakage through the bellows walls. Another advantage of this type of bellows is that the inwardly-extending folds, especially when strengthened with stiffeners, provide very effective agitation of the pulverulent matter within the dispensing container.

Fig. 9 illustrates how well the shape of the blank adapts it to be cut from a sheet or strip of paper or other material without waste. The blanks may be cut with center lines parallel with the edge of the sheet, or at an angle as shown.

Figs. 10 to 17 illustrate convenient methods of forming manifolds of the type shown in Fig. 5 and partially described hereinabove. One of the important advantages of this type of manifold is its simplicity of construction, which makes it possible to produce these manifolds by mechanical means from substantially rectangular blanks of cardboard or other suitable material.

Each manifold is formed from one or two blanks, as preferred. When two blanks are used, one of them (Fig. 10) forms the manifold casing and the other (Fig. 11) forms the middle lamella and its supports. It is generally simpler and therefore preferable to use only one blank, substantially of the form shown in Fig. 15.

A substantially rectangular blank 62, shown in Fig. 10, is divided into four sections 63, 64, and 66 by parallel folding lines. Alternate sections are of substantially equal width, as they form opposite sides of the rectangular manifold casing. Sections 64 and 66 are designated side sections, 65 is the bottom, and 68 is the top of the casing. The top section 63 is perforated near the ends to form holes 16 and 17 of any desired shape. A tab 68 may be provided on the end of section 68, or may be omitted. The blank is then folded to form a rectangular casing open at one side, as shown in Fig. 12.

A rectangular blank 69, shown in Fig. 11, is divided into three sections 71, 72 and 18 by parallel folding lines. Section 18 forms the middle lamella of the completed mani fold, and is substantially equal in width to the top 63 and bottom 65 of the manifold casing. The sections 71 and 72 are equal in width, and substantially half as wide as the sides 64 and 66 of the casing. The middle section 18 of this blank is partially severed from the other sections as indicated by the dotted portions of the folding lines in Fig. 11, and a hole 19 is provided near its center.

The blank 69 is then folded in the form of an inverted U, as shown in Fig. 13, and this is inserted in the casing as shown in Fig. 1 1. The sections 71 and/or 72 may be glued or otherwise fastened to the corresponding side sections 6 1 and 66 of the casing if desired. The top section 63 of the casing is then folded down and glued, sealed with tape, or otherwise fastened along its edge to section 66. When a tab 68 is provided on section 68, this is folded in under the lamella 18 and fastened to hold the free end of the lamella in place. Otherwise this end of the lamella is fastened to the top of the casing with tape, glue, or the like.

An alternative and usually preferable method of manufacturing non-dumping manifolds employs a single blank 74:, shown in Fig. 15. This blank is substantially rectangular in shape, and is divided by parallel folding lines into seven sections 71, 18, 72, 65, 64, 63 and 66, substantially equivalent in function and relative size to the similarly numbered sections of blanks 62 and 69. Sections 63 and 18 are perforated as described above, and may be respectively provided with tabs 68 and/or 7 6, or these tabs may be omitted. Section 18 is partially severed from th adjoining sections as before.

Section 71 is folded at right angles with section 18, and each section in turn is folded at right angles with the preceding section,

always in the same direction, as shown in' Figs. 16 and 17. Section 71 may be fastened to section 64, and section 66 is glued, stapled, or otherwise fastened to section 72. One of the tabs 7 6 or 68 may be used to secure the free end of the lamella 18 to the top 63 of the manifold casing, or tape, etc., may be used for the purpose and the tabs are then omitted.

It will now be readily understood how my dispending container or carton duster is assembled and used. Two rectangular boxes 1 and 2 substantially equal in size are obtained, and in one of them, 2, an exhaust port 6 and a filling hole 7 of any suitable size and shape are punched or out. A fiat cardboard blank 7 1 is folded to form a nondumping manifold 15, which is glued or otherwise fastened in position to cover the exhaust port and the two boxes are hinged together along one edge.

A bellows 10 is prepared from a blank 22 substantially as described, and the folded bellows is inserted between the two boxes forming the sections of the completed container in the relation shown in Fig. 2. The marginal strips are glued or otherwise securely fastened to the corresponding sides of the boxes to form a container substantially air-tight except for the exhaust hole and the filling hole.

The two halves of the container are then brought together as shown in Fig. 1, and the rip-cord is laid in place around the exhaust port and the dividing line between the halves of the container, and sealed on with paper tape or other suitable material. The container is then filled to the desired extent with an insecticide or other pulverulent material, and the filling hole is closed and sealed. Alternatively, the container may be filled before applying the rip-cord and closing the exhaust port.

The compact, sealed container is then ready for shipment or sale. When received by the consumer, the rip-cord is pulled as described hereinabove, opening the exhaust port and freeing the bellows. The container is thereby converted into a dust-gun or dispenser, which has a high capacity and great efficiency because of the large amount of air drawn in and expelled by the bellows.

Operation of my device as a dust dispenser is very simple, consisting of alternately opening and closing the bellows while pointing the exhaust port in the direction of the object which it is desired to dust. The non-dumping manifold is an important fe ture of the device, in that it makes it possible to discharge dust in any direction efficiently and without waste.

My device realizes the objects of its invention, and combines a compact regular-shaped container of any desired size with an efficient ejector for insecticides or other pulverulent materials, operable in any direction, to form an attractive and useful unit.

It will be obvious to those skilled in the art that various changes can be made in the several parts of my device and in the several steps in its manufacture, in addition to those enumerated hereinabove, without departing from the spirit of my invention, and it is my intention to cover in the claims such modifications as are included within the scope thereof.

I claim as my invention:

1. A dust-dispensing container comprising two rectangular cardboard boxes of substantially equal size movably connected by a hinge and a paper bellows with a single inwardly extending fold on each side.

2. A dust-dispensing container comprising a closed receptacle divided into two relatively movable sections one of which is provided with a discharge port to which dust is supplied from the body of the container through a non-dumping manifold.

3. A dust-dispensing container comprising two substantially equal and relatively movable rectangular side sections connected by a hinge at one end and an inwardly foldable bellows, a port in one of the said side sections through which air is drawn in and dust is discharged by the action of the bellows, and a non-dumping manifold establishing indirect communication between the said port and the body of the container.

4. In a dust-dispensing container comprising rectangular side sections forming the body of the container and aport in one of the side sections, a non-dumping manifold establishing communication between the port and the body of the container, said manifold being substantially equal in length and depth to the internal length and depth of a side section of the container, and at least as wide as the parallel dimension of the port. a

5. A non-dumping manifold for dust-dispensing containers, comprising a rectangular casing withinwhich is mounted a middle lamella, said lamella being flat and parallel with sides of the casing for most of its length and curved to meet a side of the cas ing at one end, thereby preventing direct communication between the space on one side of the lamella and one of the open ends of the casing.

6. A non-dumping manifold comprising a rectangular outer casing open at the ends, a middle lamella parallel with the upper and lower sides of the casing for part of its length and curved at one end to join the upper side of the casing, and a passage connecting the space below the lamella with the space above the lamella.

7. A manifold comprising a hollow rectangular casing having perforations in one side and a lamella within the casing dividing the space enclosed by the easing into two parts connected by a passage through the lamella, the lamella being curved at one end to oin the perforated side of the casing.

8. In a dust-dispensing container, the combination of a rectangular side section forming part of the body of said container, a port in the said side section, and a manifold connecting the port with the body of the container, the said manifold comprising a rectangular casing equalling the interior of the container in length and covering the said port at one end, and a middle lamella within the casing and connected to a side there of at the end adjacent the port, dividing the interior of the casing into a space communieating with the port and a space which communicates with the body of the container through perforations in that side of the casing to which the lamella is connected, the two said spaces being connected by a passage.

9. A dust-dispensing container comprising two rectangular side sections forming the body of the container, a port and a manifold providing a plurality of passages between the port and the body of the container in one of the said side sections, and a bellows operably connecting the two side sections,

the said bellows being folded from a flat polygonal blank.

10. In a dust-dispensing container, a bellows folded from a fiat blank, the flexible portion of said bellows having a single inwardly extending fold on each side, and stitfeners to strengthen the said fold.

11. A bellows for dust-dispensing containers, comprising a folded paper blank reinforced at the folding lines and having stiffeners in a plurality of folding sections, the blank being folded to provide a single inwardly-extending fold on each side, said folds serving to agitate the contents of the carton during the discharge of dust therefrom.

12. A fiat polygonal bellows blank divided into three sections, two of which are similar, and further subdivided into folding segments and marginal strips by folding lines.

13. A package for pulverulent material, comprising two rectangular cardboard side sections movably connected by a hinge and a folded paper bellows, a port in a side section of the container communicating with the body of the container through a nondumping manifold, a rip-cord placed along the edge of the bellows at the dividing line between the two side sections, and an adhesive seal holding the side sections together and the rip-cord in place, an end of the ripcord being allowed to protrude from the package.

14. A dust-dispensing container comprising two rectangular side sections connected by a hinge at one end and by a bellows at the two sides and the other end, said bellows having an unbroken inwardly-extending fold on each side, and one of the side sections being provided with a discharge port and a non-dumping manifold for supplying dust to said port from the interior of the container.

15. A dust-dispensing container comprising two relatively movable rectangular side sections of substantially equal size, said sections being connected by a hinge at one end and by a bellows having a single unbroken inwardly extending fold on each side, a port in the hinged end of one of the said side sections through which air is drawn in and dust is discharged by the action of the bellows, and a non-dumping manifold establishing indirect communication between said port and the interior of the container.

16. In a dust-dispensing container, the combination of a rectangular side section forming part of the body of said container, a port in the end of the said side section, and a non-dumping manifold connecting the port with the interior of the container, the said manifold comprising a casing substantially equal in length to the interior of the container and divided into two substantially parallel passages by a lamella, one of said passages communicating with the said port and the other of said passages communicating with the interior of the container through perforations in the casing, the two passages being connected by a passage around the end of the lamella at the end of the manifold opposite from the port.

in testimony whereof, I have hereunto subscribed my name this 21st day of November 1930.

PAUL D. PETERSON. 

